Why Do Other Dogs Hate My Dog? Understanding Dog Aggression

Some people just hate others without reason. They’ll see a person walking down the street, thinking, “Why do I hate that guy?” It’s not like they know anything about him.

It’s the same with dogs. Some dogs just hate other dogs for no good reason. They’ll see another dog across the street, and they’ll start barking and growling and carrying on as if there’s something wrong with that dog.

It can be frustrating for the dog owner who just wants to take a peaceful walk down the street. In this article, we’ll explore some of the reasons why dogs act aggressively towards other dogs.

What is Dog Aggression

dog fighting each other

Dog aggression is a threatening or violent behavior directed towards people or other animals. It can be triggered by various things, including fear, territoriality, bad experiences, and possessiveness.

Aggressive behavior can range from growling and barking to biting and attacking. While some aggression is normal dog behavior, excessive aggression can be a problem for dogs and owners.

Excessively aggressive dogs may need professional help to appropriately interact with people and other animals.

Signs of Dog Aggression

The following are the common signs of aggression in dogs.

Growling or Barking

Growling is usually a dog’s warning you that they’re feeling uneasy or threatened. If you see your dog growling or barking at someone, it’s essential to step in and calm the dog down.

Baring Teeth or Snapping

dog showing its teeth

This is a clear sign that your dog feels threatened and wants the person to back off. If you see your dog doing this, it’s essential to immediately remove them from the situation.

Dog Stiffens its Body and Hackles

The hair along its back and spine will raise. This is usually accompanied by a deep growl or snarl and is a clear indicator that the dog is feeling threatened and is getting ready to attack.

Charging or Lunging

When a dog charges, it may be stiff-legged with its head held high and its tail low. The dog may also raise its hackles. The dog may make direct eye contact and may even growl or bark.

If the charging dog contacts the other dog, it may shove it with its chest or knock it over. Alternatively, the charging dog may simply stop short of making contact. In either case, the message is clear: the charging dog asserts itself as the dominant member of the pack.

Recognizing the signs of aggression in dogs is essential for keeping your dog and those around them safe. If you see any of these signs, make sure to take action immediately to diffuse the situation. Let’s look into the reasons why dogs may be aggressive towards others.

Reasons for Dog Aggression

dogs fighting in the grass

There are several reasons why dogs may act aggressively towards other dogs such as:

Inadequate Socialization

Often, the root cause of aggressive behavior is inadequate socialization. Dogs who lack exposure to other people and animals during their critical socialization period are more likely to be fearful and mistrustful of strangers.

Inadequate socialization can lead to aggressive behaviors such as growling, snapping, or biting. Dogs who are not adequately socialized may also be more territorial, causing them to become aggressive when they feel their territory is under threat.

Pain or Illness

Other causes of aggression include pain or illness, which can cause even the most gentle dog to lash out. Treating the underlying medical condition is often the key to reducing aggression.

Natural Aggressive Temperament

Some dogs may simply be born with an aggressive temperament. These dogs will require special care and management to prevent them from harming others.


Fear is often the cause of aggression in dogs. Dogs may be afraid of people, other animals, loud noises, or unfamiliar environments. When dogs feel scared, they may react with aggressive behaviors such as barking, growling, or biting.

Dogs who are afraid need help to overcome their fear and learn to trust people and other animals. With patience and training, most dogs can learn to overcome their fears.


Many dogs are naturally territorial and will become aggressive when they feel their territory is under threat. It may be the case when a strange dog comes into the yard or another animal is perceived as a threat to the family pack.

Territorial dogs may also become aggressive when taken to a new place, such as the dog park or the vet’s office.


Some dogs may become aggressive when they feel that their possessions are threatened. This may include food, toys, or even their owner. Possessive dogs often guard their belongings and may become aggressive if someone tries to take them away.

Dogs who are possessive of their owners may become aggressive when they see another person approaching. They may also guard their owner against other people or other dogs, leading to aggression.


Studies have shown that male dogs are more likely to be aggressive than females and that this difference is especially pronounced in unneutered males. There are several theories as to why this is the case, but one leading explanation is that testosterone plays a role in making male dogs more prone to aggression.

This hormone is present in both sexes, but it is much higher in males, and it can influence a wide range of behaviors, including aggression. Another possibility is that male dogs simply learn to be more aggressive through socialization with other dogs.

Whatever the reason, it is clear that sex can be a significant factor in determining a dog’s likelihood of being aggressive.

Why Do Other Dogs Hate My Dog? 

Do you have a dog that other dogs just can’t stand? It may be as a result of the following.

They Feel Threatened by Your Dog

It may be because the other dog is more prominent than them or because they perceive the other dog as being a threat to their territory.

Other Dogs Lack Socialization

Other dogs may be acting aggressively towards your dogs because they lack socialization. Without exposure to other people and animals during his critical socialization period, a dog may be fearful and mistrustful of strangers. It can lead to aggressive behaviors, such as growling, snapping, or biting.

Your Dog’s Behavior Confuses Them

Dogs are highly social creatures, and they have their own language and form of communication. When your dog is behaving in a way that doesn’t make sense to other dogs, it can be confusing and frustrating for them. It can lead to aggression and even conflict.

They Don’t Like the Way Your Dog Smells

Maybe your dog’s natural scent just doesn’t mesh well with other dogs. Dogs communicate through scent, and if your dog’s smell is unfamiliar or off-putting, it’s no wonder that other dogs may not be too keen on getting to know them.

Some dog owners find that their dogs are more accepted after bathing them with a new shampoo or doggie cologne. If you think your dog’s smell might be part of the problem, it’s worth experimenting with different products to see if you can find a scent that other dogs are more receptive to.

Bottom Line

There are many reasons why dogs hate each other. It could be the result of poor socialization, previous bad experiences, or simply because they’re different breeds with different temperaments. But once you understand what’s causing the aggression, you can often find a way to diffuse the situation and keep your dog safe.

If your dog is displaying aggressive behavior, the first step is to take him to the vet for a checkup. It’s important to rule out any medical causes for his aggression, such as pain or anxiety. Then, you can start working on addressing the behavioral issue.

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